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Onetouch 4.6 Scanned Documents ABC / DTC - NET MANUAL for ABC800 / Facit DTC and ABC80 Copyright (C) 1982 SATTCO AB, SWEDEN Verse 6 I-rAJ 1 983 (A) 9840 LJ Information in this document is subject to change without notice. ABC/DTC-Net MAJ83(A)- 1 83-05-09 RECORD OF CHANGES Date Pages Description 83-05-09 6 -1 PR out on pin 9 on CPU-card 83-05-09 1 1 - 2 Unit shipped with login 'SD' 83-05-09 App.2 Differ. ABC80/ABC800 syst.progr.names - ABC/DTC-NET 0­ 82-10-31 - CONTENrrs 1. DESCRIPTION - 2. SOFTWARE, DOS VERSION 6.xx 2.1 General, DOS 2.2 Direct disc addressing though DOS 2.3 Direct I/O 2.4 ABC800/Facit DTC and ABC80 compatibility 2.5 New 5 1/4" l,iini-floppy disc structure .. 2.6 New card select code for 8" floppy 3. USER DIRECTORIES, ACCESS PRIVILEGIES .. 3.1 User directories 3.2 Log-in, User, Super-user 3.3 Updating common files .. 4. CENTRAL EXECUTION OF SYSTEM PROGRAMS 5. COMMUNICATION, ABC-NET CABLE 6. CENTRAL UNIT (7028), CONNECTION BOX, RAM-BOARD .. 7. TERMINAL UNITS (7029,7030) 8. PRINTER 8.1 Printer access, Device names PH: and RPR: 8.2 Spooling 8.3 Printer hardware interface 8.3.1 Standard .. 8.3.2 Optional 8.4 Print output format .. 9. ABC/DTC-Net UTILITY SOFTWARE 9.1 COPYLIB,DOSGEN,DISKCHEK,UFD 9. 2 I\~AKEUSER 9.3 LOGIN 9 • 4 RA r~~ 0 PT 9.5 SETSTART,STARTUP 10. INSTALLATION 10.1 Physical connections 10.2 Central system with printer 10.3 Terminal board for ABC800/Facit DTC 10.4 Terminal board for ABC80 10.5 Disc interfaces 1 1. START-UP PROCEDURE 12. TECHNICAL DATA - Appendix 1. DOS 6.xx GENERAL DISC HANDLING SYSTEM Appendix 2. New channel select 4108 Appendix 3. ABC802 pin configuration - Appendix 4. Installation (Swedi~h) - - ABC/DTC-Net 1 - 1 82-10-31 1. DESCRIPTION r r Central Disc Systems ABC/DTCnet RAM Central processor Memory printer I Connection box J ...................I ABC-Net cable -- ...., ABC/ DTCn e tl ABC/DTC net ABC/DTC net fABC/DTCnet] [terminal J [terminal [termi:.~al lterminal ABC800 ABC800 ABC80 ABC800 Facit DTC Facit DTC Facit DTC ABC80 Local Expansion printer I/O MEM I,, I, I II ~ r ... ABC/DTC-Net 1 - 2 82-10-31 LARGEe EN r RAL DIS C s TOR AGE CAP ACIT Y AND COMrwl 0 N PR I NT ER • The ABC/DTC-net system provides large disc storage capacity and a common printer, with printer buffers on disc. Up to 32 - peripheral computer systems can be connected to the central system. ABC800, Facit DTC and ABC80 computers are connected to the central system through one ABC-Net cable and are simultaneously accessing the entire central disc systems and printer with all normal BASIC routines. .. Each connected computer system is independant and sees the central disc drives and printer as normal disc and printer devices. - One t or up to 12, disc devices can be interconnected in the .. c e n t r a I unit, vlinchester drives, au Floppy drives and 5 1/4" N1.ni-floppy drives.(Chapter 2.1 ) •. UE3ER DIHECTORIES, ACCESS PROTECTION .. User directories are defined to subdivide the central discs and prevent users from accessing each other's files. Files can .. also be individually write protected. A user log-in procedure is required for access to the .. ABC/DTC-net system, where passwords may be used for security. LOCAL PRINTER (ABC800/DTC), LOCAL MEM. OR I/O EXPANSION. A local printer may be used with each ABC800/Facit DTC system, but not for ABC80. Each computer system may be expanded with extra memory or interface-cards in a local expansion box. CONMUNICATION All communication is through the 3-wire ABC-Net cable, with a ma x i.mu m total length of 300 m, to which the central unit, as well as each local computer are connected into a multi-drop config u rat i 0 11 • T 0 III i n i mi z e the d a tatrans fer 0 v e r the cab 1 e , some utility programs are partly executed within the central system. Efficient use of interrupts permits printing, command execution and data transmission to be done simultaneously. Data is transfered block-wise in serial form with 19200 Baud. .. INI1'IATING OPTIONS IN CENTRAL UNIT The ABC/DTC-net system may be initialized at power-on or reset by executing a utility program within the central unit. This could be used to set the V24-printer baudrate or disc parameters. - AUTOSTART OPTION FOR ABC800/DTC ... Automatic log-in and/or start of a user program may be s e Le c t e d , - - ABC/DTC-Net 1 - 3 82-10-31 ABC/DTC-NET SYSTEM COMPONENTS The ABC/DTC-net system consists of the components below, connected to the central disc systems, printer and the peripheral computer systems. At least one floppy or mini-floppy drive is required in the central unit to load the system utility initially. A DataBoard bus is required in the central system with slots for CPU, memory and interfaces. 1. The 7028 central unit. -Central processor card with system program in EPROM and interface circuits for the ABC-Net cable and printer(V24/RS232C). -A connection box with 1.5 m cable, between the processor card and the printer and the ABC-Net cable. -System utility programs on a 8" or 5" diskette. 2. Central memory card with 16 Kbytes. The DataBoard 2009 board is recommended. 2. Terminal boards for each connected computer, including communication programs and DOS­ and printer simulation program in EPROM. -7029 for ABC800/Facit DTC -7030 for ABC80, including also a metal box and a 500 mm ribbon cable. 4. User constructed ABC-Net cables between each unit. Chapter 5 describes the connectors and the recommended cable type. Optionally, a separate interface card may be used for the central printer. In this case, the interrupt signal must be available from the I/O slot used to the central processor slot in the central unit. The recommended cables has the corresponding standard connectors for the printer. - 4001 Centronic interface - 4015 SP1 interface (Facit) - 611 6 Cable Centronics - 6109 Cable SP1 ABC/DTC-NET 2 - 1 82-10-31 - 2. SOFTWARE, DOS VERSION 6.xx 2.1 General - The system is software transparent for normal BASIC programs. Each peripheral computer may have up to 6 files open - simultaneously, exactly as in a single user system. Files may be accessed sequentially and by random access. Specific sectors on the disc/diskettes can also be accessed through DOS. Note that DOS version 6 is used, with non-biased sector - addresses (chapter 2.2). Special ABC/DTC-net-versions are normally needed for - commersial programs, protected against copying. The local software on the terminal card simulates the normal - DOS and printer routines. For ABC800/DTC only, a local printer may be used, in which case the d&vice name PR: is used for the local printer and RP~1: for the central. (Chapter 8.1). - Version 6.xx of DOS is used for both ABC800/Facit DTC and for ABC80. DOS version 6 is a general disc handling system for simultaneous control of different types of disc drives. - As standard, the following device names are available: UFD: own user directory. HDO: HD1: HD2: HD3: max 4 Winchester devices rrl FO: ivi F 1: MF 2 : max 3 Double Track mini-floppy devices MOO: IJI 01 : max 2 Single Track mini-floppy devices ... SFO: SF1: SF2: max 3 Floppy devices 8" DRO: DR1: DR2: DR3: directed to the Winchester device PH: ABC80 Central printer or ABC800/DTC Local printer RPR: ABC800/DTC Central printer. In addition the following local device names are used: CAS: in ABC80 and ABC800/DTC V24: NUL: CON: only in ABC800/DTC. The normal disc device name DRO:, DR1: etc. is by default directed to the Winchester disc (HDO:, HD1: etc.), but may be changed by the initiating RAMOPT.SYS program to access another - drive type. When the system searches a file, the discs are searched in the .. default search order, which is the order in the table above. NOTE! NO PATCH AREA is available above OFDOOH as for the earlier DOS. NOTE! New card select code is used for the 4108 8" floppy interface. Use 56 octal (See sect. 10.5.3). .. .. - ABC/DTC-NET 2 - 2 82-10-31 The default drive parameters are as below. They are also possible to modify at initiation. Device Card Cluster Type name sel. size HDx: 44Q 32 Winchester drive MFx: 54Q 4 Double Track 5 1/4" Mini-floppy MOx: 55Q 1 Single Track 5 1 /4" ~1ini-floppy SFx: 56Q 4 Floppy 8" 2.2 Direct addressing through DOS Programs, accessing the disc sectors directly through the DOS entrypoints, must be written for DOS version 6, as the sector addresses are changed, compared to earlier DOS versions. All sectors are now addressed from 0 and up consecutively, independant of the track numbers and the disc drive type. Examples of programs, using direct access to the disc are LIB.BAC, COPYLIB.BAC and most commersial programs, protected against copying. A user may be prevented from writing with direct sector access on the disc units, by a low privilege in the user parameters (Chapter 3.2). 2.3 Direct I/O to disc or printer interface. Programs, doing direct I/O to the disc or printer interfaces can not be run in the ABC/DTC-net system.
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